如题所述
3.5×3= 0.72×5= 2.05×4= 12.4×7=
2.3×12= 6.7×0.3= 2.4×6.2= 0.56×0.04=
6.7×0.3= 0.56×0.04= 3.7×4.6= 0.29×0.07=
6.5×8.4= 56×1.3= 3.2×2.5= 2.6×1.08=
0.87×7= 3.5×16= 12.5×42= 1.8×23=